URUMQI, May 6 (Xinhua) -- More than 7 billion kilowatt hours of electricity were transmitted from Xinjiang to the rest of China during the first quarter, up by 120 percent year-on-year, thanks to improved infrastructure.

According to the Xinjiang branch of the State Grid Corporation of China (SGCC), since 2010, the company has been improving the power grid in Xinjiang, in an effort to transmit the region's redundant electric power to other parts of the country.

The construction of a 750 kv power transmission line connecting Xinjiang with northwestern China was completed in 2013. An 800 kv ultra-high voltage direct current transmission line between Xinjiang and central Henan Province went operational in 2014.

So far, Xinjiang has transmitted more than 30 billion kilowatt hours of power outside of the region, which has brought about 3.87 billion yuan (624.6 million U.S. dollars) of industrial value added and 2 billion yuan of fiscal revenue.

By 2020, the company will complete the construction of power transmission lines linking Xinjiang with areas including southwestern Sichuan Province, southwestern Chongqing Municipality and eastern China. The project expects to increase Xinjiang's outward power transmission capacity to 300 billion kilowatt hours a year.